Wheel puller



.Patented den. il,

GEORGE GROSVHOLZ,

`ro .ioniv n WHEEL PULLEE.

Application filed November2r5yl92l. Serial No. 517,496.

To @ZZ w from t mag/concern Be it known that l, GEORGE Gnosiioiiz, a

citizen of the United States, and a resident` of Dayton, in the county or' Campbell and State of Kentucky, have invented certain new and useful Improvements in Wheel Fullers, or' which the following is a full, clear, and eXact description, reference being had to the accompanying drawings, torming part oi. this specilication.

My invention relates to devices `for pulling wheels from vehicle axles in which a screw bolt mounted in a split or slotted sleeve is brought to bear on the end of the axle, with the sleeve screw threaded over the hub o't the wheel and locked or clamped in place so that the pressure or the bolt draws the wheel and hub from the axle. rEhe dilliculty experienced iii such constructions that unless thesleeve is effectively ylocked to the hub there is great danger or" stripping the threads of the sleeve andhub connection instead of withdraaving` the wheel.

My object, therefore, is to provide a simple, cheap and exceedingly eilecti've construction, in which the screw-threadedfconiiection can he instantly loclied against stripping the threads and instantly released when the wheel has been drawnfroin the hub. f

ld'y invention consists or' that certain novel construction to be hereinafter particularly pointed out and claimed, whereby an annular' clamp member ris provided for clamping the sleeve in place which can be operated by the blow or a hammer or any convenient instrument to uniformly contract the split sleeve to loclr it in place without the need ofl' a wrench or any special tool, and which can he' as readily released by a blow iuthc opposite direction.

ln the drawings,

l1`igurc l is a sido elevation olf' .my iln proved wheel puller. n

Figure 2 is a central longitudinal. section illustrating its application to the wheel.

Figure 3 is a iront elevation.

As shown in the drawings, l is the cupshaped sleeve provided with longitudinal slots 2, 2, and witliinterior screwthreads 3. The outer end of the sleeve is preferably 'formed with a head 4 to provide ya sutlicient eitective threaded bearing` surface flor the screw bolt 5 screwthreaded kcentrally therein f and provided with a head 6 for any suitable wrench.

The exterior inner end of the sleeve l yis provided with a series or peripheral cani projections 7 of gradual slope in one direction 8, and terminating inv sharp radial shoulders 9.

Mounted over these camv projections is an annular band 'l0 provided with corresponding cani depressions l2. Projecting outwardly theI band also carries a series ot' striking lugs 13. i

Any convenient means may be employed for holding the hand in place. ln the construction l have chosen :tor illustration, an internal flange 14 is formed in the band, which bears againstthe side oiE the cani projections oie. the sleeve, while a split spring ring l5 is inserted in the shallow groove 16.

The hub of the wheel 17 on the aille l is exteriorly screwthreaded and in order to pull the wheel from thev axle the cup-shaped split sleeve is screwed on the hub. The

projecting inner end oiz the holt 5 is thus kbrought in line with the end ofthe axle 18.

Then with a blow orf a hammer or any striking instrument the user strikes the lugs i3 of .the band l0 and tightens the split 'sleeve on the hub. llhe boltis then turned `and the hub pulled oil oic the` axle. Such a 4powerful clamping pressure to contract the screwthreaded end of the sleeve can beobtained in this way without the need or wrench or other special tool, that there is Lno danger of stripping the screwthreads on the huh or sleeve when the bolt is screwed up, while a simple blow on a lug 13 in the opposite direction at once loosens the sleeve so that it can be removed from the hub.

This (':oiistruction for tightening the sleeve innch more effective and less expensive thanv clamp collars which must bo v tightened trom one side or tightening dovices :lor the sleeve which do not apply the pressure on the sleeve in a plane at right angles to the sleeve axis. n

ln prior constructions, so ar as l am aware, there is much greater liability or stripping the threads on the hub or sleeve than in my construction.

Having thus described iny invention, what I claim as new and desire to secure by Letters Patent, iszl. A wheel puller comprising a cup- Shape@ split sleeve iiiteiioily tiiieaded, a boit mounted iii said cup-Shaped @mi und adapted. to be advanced against iii@ @iid of :iii axle, me Sieeve provided exteiioi'iy -with cam pi-ojscions :ii'mmd the split poi'tioii of the sieei'e9 zuid a, .metnfiic band enciciiiig said am poi-tima provided with corresponding interior @am depi'assioiis, with means whei'by said band may be minted C0 contract the split Sleeve when threaded on 'the hub of a wheel.

2. A wheel puller comprising L cupshaiped split Sleeve iiiteiioily threaded, a

bait inouiisii iii said cup-Shuliexi cm1 :13ml

:idaped to be advanced against the cud oi? l5 mi amie, che sleeve provided exteiioifiy with cam projections around the split poiiou o'lf the sleeve, and n, metallic band emiiciing Said cum poitioii provided with corresponding interior cam depressions, with radially wojectiiig lugs oii Suid band iidpted to be stli'ck to rotaie the band and contract die Split sieeve when threaded on the 1mb of 1L Wheel. f

GEORGE GROSHOLZ. 

